No less upset when I am brought in with injuries (7)
I believe the answer is:
lesions
'injuries' is the definition.
(lesion is a kind of injury)
'no less upset when i am brought in' is the wordplay.
'no' becomes 'n' (common abbreviation).
'upset' indicates an anagram.
'when i am' becomes 'io' (I am not sure about this - if you are sure you should believe this answer much more).
'brought in' is an insertion indicator.
'n'+'less'='nless'
'nless' with letters rearranged gives 'lesns'.
'lesns' enclosing 'io' is 'LESIONS'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for lesions that I've seen before include "Wounds" , "Injuries" .)